US20030022586A1 - Gyroscopically stabilized throwable implement - Google Patents
Gyroscopically stabilized throwable implement Download PDFInfo
- Publication number
- US20030022586A1 US20030022586A1 US09/915,978 US91597801A US2003022586A1 US 20030022586 A1 US20030022586 A1 US 20030022586A1 US 91597801 A US91597801 A US 91597801A US 2003022586 A1 US2003022586 A1 US 2003022586A1
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- United States
- Prior art keywords
- implement
- throwable
- rotation
- axis
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
- A63H33/18—Throwing or slinging toys, e.g. flying disc toys
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/04—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon modified to store record carriers
- G11B33/0405—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon modified to store record carriers for storing discs
- G11B33/0411—Single disc boxes
- G11B33/0422—Single disc boxes for discs without cartridge
- G11B33/0427—Single disc boxes for discs without cartridge comprising centre hole locking means
Definitions
- the present invention generally relates to throwing implements and more particularly relates to gyroscopically stabilized throwing implements that include a recordable disk medium such as a CD.
- FrisbeeTM a throwable gyroscopically stabilized aerodynamically favorable implement as a toy generally known as a FrisbeeTM.
- Frisbie Pie Company of Connecticut offered pies in a pie-tin that, once the pie was eaten, was used by Ivy-league college students as an implement to be tossed between throwers for Frisbie-ing entertainment.
- Others also sailed flat disks for entertainment resulting in various improvements in aerodynamics, mass distribution, materials, and additional features culminating in the FrisbeeTM toy and its cousins we see today.
- CD Compact Disk
- Video CD for digital video recordings
- DVD Digital Video Disk
- CD-ROM CD-R and CD-RW for writable storage
- a gyroscopically stabilized throwable implement and recordable medium includes a disk-shaped body having at least a first surface and a second surface configured to provide aerodynamic lift when thrown and gyroscopic stability when rotated about an axis of rotation.
- the implement includes a feature that removably attaches the recordable disk medium to the disk-shaped body.
- the recordable medium is held parallel to one of the first surface and the second surface, and disposed with the mass of the recordable medium essentially balanced about the axis of rotation.
- FIG. 1 is a cross section of a recordable medium such as a discoidal CD which may be employed in the present invention.
- FIG. 2 is a top plan view of a recordable medium such as a CD that has been formed into a credit card size and shape.
- FIG. 3 is a top plan view of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 4 is a cross section of the implement of FIG. 3 taken along section line 4 - 4 .
- FIGS. 5A, 5B, and 5 C are magnified cross sections of spring finger and recordable medium capture embodiments which may be employed in the present invention.
- FIG. 6 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 7 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 8 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FrisbeeTM-like toy and a CD offer those who wish to distribute a CD in a surprising way just such an opportunity.
- a popular concert would include, as a stimulus for the concert-goers to purchase an audio CD or a DVD by the performers, a distribution from the stage of a limited number of CD-including FrisbeeTMs by launching the implements from the stage.
- the advent of rapid recording of CDs makes it possible for a recording of that very concert to be impressed upon the CD being sailed out among the audience immediately following the conclusion of the concert.
- Other advertising and promotional uses easily fall within the purview of the implement.
- a mere flat disk does not have the aerodynamically advantageous shape to provide a reasonable flight experience that a FrisbeeTM offers.
- the curved upper surface coupled with the flat lower surface and the angle of attack into a flowing airstream provide lift to enable flight for the disk. Since the FrisbeeTM is launched with a spin imparted by the thrower and since most FrisbeeTMs are created with a significant proportion of the mass of the disk located in an annular band at the circumferential edge of the disk, a substantial amount of angular momentum is created around the axis of rotation of the disk. This angular momentum gyroscopically resists changes in the direction of the angular momentum vector along the axis of rotation and results in a long and interesting flight for the FrisbeeTM.
- a conventionally manufactured flat disk (without aerodynamic shaping) 101 is used as an information storage medium (a CD) is shown in a cross section of the disk in FIG. 1.
- a CD information storage medium
- information in excess of 650 Mbytes of data (740 Mbytes of audio) can be stored on the CD.
- the most common physical implementation of a CD has a diameter, d 1 , of 120 mm and a thickness, t, of 1.2 mm and a mounting hole 103 having a diameter, d 2 , of 15 mm.
- the top surface 105 is generally available for message and image printing while the bottom surface 107 is typically optically transparent and allows laser reading (and writing) of information from an internal lamina via this surface.
- MiniCD which is often encoded with digital audio—and often in MP3 format.
- Such a MiniCD is physically smaller (a disk diameter, d 1 , of 70 mm) with a correspondingly smaller information storage capacity (160 Mbytes of audio or 140 Mbytes of data).
- Non-discoidal CD shapes have been introduced, for example the credit card size and shape depicted in the plan view of FIG. 2, but the information stored is typically limited to the complete data tracks 201 between the lead in track 203 and the card edge 205 .
- FIG. 3 A top plan view of a preferred embodiment of a gyroscopically stabilized throwable implement employing the present invention is shown in FIG. 3.
- the implement 301 of the preferred embodiment casually referred to as a FrisbeeTM, employs a plastic body shaped in the form of a disk.
- FrisbeeTM employs a plastic body shaped in the form of a disk.
- other shapes offering a stable angular momentum vector through the body may also be used provided that the angular momentum and the lift of the implement are arranged for stable flight.
- a depression 307 is molded into the crown of the body.
- the turbulence ridges 303 and the depression 307 are concentric among themselves and with the center of rotation (the center of the angular momentum vector) of the body.
- the depression 307 is circular.
- the shape of the depression can be molded to match.
- a securing mechanism for the CD is also centered on the axis of rotation.
- twelve flexible fingers 309 are arranged in a circle about the axis of rotation and protrude away from the bottom of the depression.
- the circle defined by the outer surface of the flexible fingers is slightly larger than the diameter of the mounting hole 103 of the CD 101 such that an interference fit with the CD mounting hole is realized.
- the arrangement between the components can be appreciated from FIG. 4, a cross section of the implement taken at 4 - 4 .
- the concave under surface 401 and the circumferential distribution of mass 403 of the body can be apprehended from the cross section illustrated in FIG. 4.
- the protruding portion of the fingers are mounted on cantilevers that are attached to the flat bottom 405 of the depression in a circle 311 centered on the axis of rotation 407 and concentric with the fingers' circle but having a larger radius.
- FIG. 5A for a detailed sectional illustration of the spring finger assembly.
- the diameter of the depression 307 in a preferred embodiment is slightly larger than the diameter of a CD so that the CD 101 can be relatively easily inserted and removed from the body 301 . The ease of insertion and removal must be balanced against the forces expected during flight and landing of the implement, which can be violent on a small scale.
- FIG. 5A The easiest insertion and removal is realized by forming the spring fingers and the depression as shown in FIG. 5A.
- One spring finger 309 is magnified and shown in cross section.
- the portion of the spring finger that contacts the hole of CD 101 is a portion 501 that protrudes essentially perpendicularly away from the bottom surface 405 of the depression 307 and offers frictional contact with the hole of the CD 101 to maintain the CD in place and clearing the peripheral walls of the depression by a distance, c, of 1.6 mm.
- the fingers are disposed at the distal end of a cantilever portion 503 that is, in the preferred embodiment, elevated parallel to the bottom surface 405 at a spacing, b, of 1.2 mm and bonded to the bottom surface 405 of the depression 307 by an attachment portion disposed at the proximal end of the cantilever in a circular ring having a larger diameter than the circle formed by the protruding portion of the spring fingers, at 505 .
- the length of the cantilever, from the CD-contacting surface of the protruding portion of the spring finger to the point of bonding in a preferred embodiment is 4.0 mm
- the thickness, m, of the plastic material forming the spring finger is 0.8 mm.
- the spring finger is bent into a crooked portion 507 directed toward the axis of rotation (not illustrated in FIG. 5A), disposed parallel to the bottom surface 405 of the depression 307 , and elevated by a distance, h, of 3.2 mm from the bottom surface.
- Removal of the CD is accomplished by placing a human finger or stylus at the tip of the crooked portion 507 of the spring fingers and pushing toward the bottom surface 405 . This pressure causes the cantilever portion 503 to deflect a sufficient amount that the frictional force supplied by the protruding portion of the finger against the CD is released. The CD may then be pulled out of the depression 307 .
- a ridge 509 is added to the spring fingers 309 at the junction of the protruding portion 501 and the crooked portion 507 as illustrated in FIG. 5B.
- This ridge 509 extends beyond the CD-contacting surface of the spring finger 309 protruding portion 501 by a distance, f, of 0.8 mm.
- the ridge makes the insertion and removal of the CD more difficult for the human but also makes the inadvertent dislodgement more unlikely.
- FIG. 5C Yet another technique of securing the CD into the body is illustrated in FIG. 5C.
- the outer edge of the CD is captured by a lip 511 that defines the periphery of the depression.
- the depression is formed with a diameter that is only slightly (1.6 mm in the alternative embodiment) larger in diameter than the CD.
- the lip 511 extends beyond the essentially flat sidewall 513 of the depression 307 by a distance, g, of 1.6 mm, thereby capturing the CD edge.
- the lip need not be continuous around the periphery but should capture the CD in at least two places. Insertion and removal of the CD is difficult, requiring the body of the implement to be flexed at the same time the spring fingers are depressed. However, the likelihood of the CD being dislodged is diminished considerably.
- FIG. 6 An alternative embodiment that replaces the depression with a through-hole 601 in the body 301 from the top surface 305 to the under surface 401 is illustrated in the cross section of FIG. 6.
- the through-hole has at least two edges, and as much as a complete periphery, that is approximately the same diameter as the CD and has an indented lip pair 603 that has a separation between each lip of 1.0 mm, less than the thickness of the CD and an overlap of the CD, for a full capture of the CD edge, of 1.6 mm.
- FIG. 7 An alternative embodiment in which the CD 101 is attached to the under surface 401 of the body 301 is illustrated in the cross section of FIG. 7.
- the top surface 305 and crown of the body can be maintained without change from a conventional FrisbeeTM and include advertisement or other adornment in the discretion of the designer.
- Spring fingers 309 ′ protrude away essentially perpendicularly from the under surface 401 to frictionally capture the CD at its through hole, as described above. Also as described above, the spring fingers are affixed to the surface of the body, albeit in this embodiment to the under surface 401 , by way of a cantilever portion and are arranged in a circle having a center coincident with the center or rotation 407 of the implement.
- the body of the implement can be formed of a transparent plastic, either in whole or just in an area near the crown of the body.
- a depression 307 is formed in the top surface 305 of the body 301 , having an essentially flat bottom surface 405 and a shape and depth to accommodate the expected CD 101 .
- a pedestal 801 is disposed on the bottom surface 405 and arranged symmetrically about the axis of rotation 407 . For those instances where the pedestal is circular, the diameter of the pedestal is approximately 30 mm to contact the CD within the clamping area, and the height of the pedestal is 1.2 mm to prevent the surface of the CD from generally contacting the bottom surface 405 of the body.
- a paper or plastic tape 803 is disposed over the CD 101 and the depression 307 and extends for an overlap distance 805 on the upper surface 305 of the body.
- this paper or plastic tape is selectively coated on its inner side with an adhesive in the overlap distance 805 and in the contact ring area 807 such that the CD is secured and protected within the depression 307 .
- Advertisement and promotional material can be printed or disposed on the outer side of the paper or plastic tape.
- a CD is disposed with a FrisbeeTM-like implement for packaging and distribution of the CD.
- the gyroscopic stability of the implement is not unnecessarily compromised with the mountings described while the protection of the CD is maintained.
Abstract
Description
- The present invention generally relates to throwing implements and more particularly relates to gyroscopically stabilized throwing implements that include a recordable disk medium such as a CD.
- Most people are familiar with a throwable gyroscopically stabilized aerodynamically favorable implement as a toy generally known as a Frisbee™. Historically, the Frisbie Pie Company of Connecticut offered pies in a pie-tin that, once the pie was eaten, was used by Ivy-league college students as an implement to be tossed between throwers for Frisbie-ing entertainment. Others also sailed flat disks for entertainment resulting in various improvements in aerodynamics, mass distribution, materials, and additional features culminating in the Frisbee™ toy and its cousins we see today.
- It has become commonplace for large volumes of information to be stored in digital form on a recordable disk storage medium generically called a CD. A CD, however, is more accurately described as a discoidal laminate of plastic, metallic, and/or dye having discontinuities in an optically readable (and writable) layer or layers that encode digital information according to predetermined standards. Different standards (and materials) are used to define a Compact Disk (CD) for digital audio recordings, a Video CD for digital video recordings, a Digital Video Disk (DVD) for high quality video recordings (sometimes called a Digital Versatile Disk), and CD-ROM (CD-R and CD-RW for writable storage) for storage of data.
- Toys and information storage media are not inherently or conceptually linked so the bringing of the two together may offer unique possibilities heretofore unheard of.
- A gyroscopically stabilized throwable implement and recordable medium includes a disk-shaped body having at least a first surface and a second surface configured to provide aerodynamic lift when thrown and gyroscopic stability when rotated about an axis of rotation. The implement includes a feature that removably attaches the recordable disk medium to the disk-shaped body. The recordable medium is held parallel to one of the first surface and the second surface, and disposed with the mass of the recordable medium essentially balanced about the axis of rotation.
- FIG. 1 is a cross section of a recordable medium such as a discoidal CD which may be employed in the present invention.
- FIG. 2 is a top plan view of a recordable medium such as a CD that has been formed into a credit card size and shape.
- FIG. 3 is a top plan view of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 4 is a cross section of the implement of FIG. 3 taken along section line4-4.
- FIGS. 5A, 5B, and5C are magnified cross sections of spring finger and recordable medium capture embodiments which may be employed in the present invention.
- FIG. 6 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 7 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- FIG. 8 is a cross section of an alternative embodiment of a throwable gyroscopically stabilized aerodynamic implement which may be employed in the present invention.
- A novel combination of a Frisbee™-like toy and a CD offers those who wish to distribute a CD in a surprising way just such an opportunity. It can be envisioned that a popular concert would include, as a stimulus for the concert-goers to purchase an audio CD or a DVD by the performers, a distribution from the stage of a limited number of CD-including Frisbee™s by launching the implements from the stage. The advent of rapid recording of CDs makes it possible for a recording of that very concert to be impressed upon the CD being sailed out among the audience immediately following the conclusion of the concert. Other advertising and promotional uses easily fall within the purview of the implement.
- A mere flat disk does not have the aerodynamically advantageous shape to provide a reasonable flight experience that a Frisbee™ offers. The curved upper surface coupled with the flat lower surface and the angle of attack into a flowing airstream provide lift to enable flight for the disk. Since the Frisbee™ is launched with a spin imparted by the thrower and since most Frisbee™s are created with a significant proportion of the mass of the disk located in an annular band at the circumferential edge of the disk, a substantial amount of angular momentum is created around the axis of rotation of the disk. This angular momentum gyroscopically resists changes in the direction of the angular momentum vector along the axis of rotation and results in a long and interesting flight for the Frisbee™.
- A conventionally manufactured flat disk (without aerodynamic shaping)101 is used as an information storage medium (a CD) is shown in a cross section of the disk in FIG. 1. Generally, information in excess of 650 Mbytes of data (740 Mbytes of audio) can be stored on the CD. The most common physical implementation of a CD has a diameter, d1, of 120 mm and a thickness, t, of 1.2 mm and a
mounting hole 103 having a diameter, d2, of 15 mm. Thetop surface 105 is generally available for message and image printing while thebottom surface 107 is typically optically transparent and allows laser reading (and writing) of information from an internal lamina via this surface. Also widely available is a MiniCD, which is often encoded with digital audio—and often in MP3 format. Such a MiniCD is physically smaller (a disk diameter, d1, of 70 mm) with a correspondingly smaller information storage capacity (160 Mbytes of audio or 140 Mbytes of data). Non-discoidal CD shapes have been introduced, for example the credit card size and shape depicted in the plan view of FIG. 2, but the information stored is typically limited to thecomplete data tracks 201 between the lead intrack 203 and thecard edge 205. - A top plan view of a preferred embodiment of a gyroscopically stabilized throwable implement employing the present invention is shown in FIG. 3. The
implement 301 of the preferred embodiment, casually referred to as a Frisbee™, employs a plastic body shaped in the form of a disk. Of course, other shapes offering a stable angular momentum vector through the body may also be used provided that the angular momentum and the lift of the implement are arranged for stable flight. In addition to theaerodynamic turbulence ridges 303 circumferentially molded into the convextop surface 305, adepression 307 is molded into the crown of the body. Many, if not all, of theturbulence ridges 303 and thedepression 307 are concentric among themselves and with the center of rotation (the center of the angular momentum vector) of the body. In a preferred embodiment where theCD 101 is a standard size discoid, thedepression 307 is circular. When other shapes for the CD are to be specially accommodated, the shape of the depression can be molded to match. Also centered on the axis of rotation is a securing mechanism for the CD. In a preferred embodiment, twelveflexible fingers 309 are arranged in a circle about the axis of rotation and protrude away from the bottom of the depression. The circle defined by the outer surface of the flexible fingers is slightly larger than the diameter of themounting hole 103 of theCD 101 such that an interference fit with the CD mounting hole is realized. The arrangement between the components can be appreciated from FIG. 4, a cross section of the implement taken at 4-4. - The concave under
surface 401 and the circumferential distribution ofmass 403 of the body can be apprehended from the cross section illustrated in FIG. 4. In order to provide compliance in thespring fingers 307, the protruding portion of the fingers are mounted on cantilevers that are attached to theflat bottom 405 of the depression in acircle 311 centered on the axis ofrotation 407 and concentric with the fingers' circle but having a larger radius. Refer to FIG. 5A for a detailed sectional illustration of the spring finger assembly. The diameter of thedepression 307 in a preferred embodiment is slightly larger than the diameter of a CD so that theCD 101 can be relatively easily inserted and removed from thebody 301. The ease of insertion and removal must be balanced against the forces expected during flight and landing of the implement, which can be violent on a small scale. - The easiest insertion and removal is realized by forming the spring fingers and the depression as shown in FIG. 5A. One
spring finger 309 is magnified and shown in cross section. The portion of the spring finger that contacts the hole ofCD 101 is aportion 501 that protrudes essentially perpendicularly away from thebottom surface 405 of thedepression 307 and offers frictional contact with the hole of theCD 101 to maintain the CD in place and clearing the peripheral walls of the depression by a distance, c, of 1.6 mm. The fingers are disposed at the distal end of acantilever portion 503 that is, in the preferred embodiment, elevated parallel to thebottom surface 405 at a spacing, b, of 1.2 mm and bonded to thebottom surface 405 of thedepression 307 by an attachment portion disposed at the proximal end of the cantilever in a circular ring having a larger diameter than the circle formed by the protruding portion of the spring fingers, at 505. The length of the cantilever, from the CD-contacting surface of the protruding portion of the spring finger to the point of bonding in a preferred embodiment is 4.0 mm The thickness, m, of the plastic material forming the spring finger is 0.8 mm. In order to aid the removal of the CD, the spring finger is bent into acrooked portion 507 directed toward the axis of rotation (not illustrated in FIG. 5A), disposed parallel to thebottom surface 405 of thedepression 307, and elevated by a distance, h, of 3.2 mm from the bottom surface. Removal of the CD is accomplished by placing a human finger or stylus at the tip of thecrooked portion 507 of the spring fingers and pushing toward thebottom surface 405. This pressure causes thecantilever portion 503 to deflect a sufficient amount that the frictional force supplied by the protruding portion of the finger against the CD is released. The CD may then be pulled out of thedepression 307. - When increased protection is needed to prevent the CD from being dislodged from the implement body during a collision of the implement and an object in the flight path, a
ridge 509 is added to thespring fingers 309 at the junction of the protrudingportion 501 and thecrooked portion 507 as illustrated in FIG. 5B. Thisridge 509 extends beyond the CD-contacting surface of thespring finger 309 protrudingportion 501 by a distance, f, of 0.8 mm. The ridge makes the insertion and removal of the CD more difficult for the human but also makes the inadvertent dislodgement more unlikely. Yet another technique of securing the CD into the body is illustrated in FIG. 5C. The outer edge of the CD is captured by alip 511 that defines the periphery of the depression. In this embodiment, the depression is formed with a diameter that is only slightly (1.6 mm in the alternative embodiment) larger in diameter than the CD. Thelip 511 extends beyond the essentiallyflat sidewall 513 of thedepression 307 by a distance, g, of 1.6 mm, thereby capturing the CD edge. The lip need not be continuous around the periphery but should capture the CD in at least two places. Insertion and removal of the CD is difficult, requiring the body of the implement to be flexed at the same time the spring fingers are depressed. However, the likelihood of the CD being dislodged is diminished considerably. - An alternative embodiment that replaces the depression with a through-
hole 601 in thebody 301 from thetop surface 305 to the undersurface 401 is illustrated in the cross section of FIG. 6. The through-hole has at least two edges, and as much as a complete periphery, that is approximately the same diameter as the CD and has anindented lip pair 603 that has a separation between each lip of 1.0 mm, less than the thickness of the CD and an overlap of the CD, for a full capture of the CD edge, of 1.6 mm. - An alternative embodiment in which the
CD 101 is attached to the undersurface 401 of thebody 301 is illustrated in the cross section of FIG. 7. Thetop surface 305 and crown of the body can be maintained without change from a conventional Frisbee™ and include advertisement or other adornment in the discretion of the designer.Spring fingers 309′ protrude away essentially perpendicularly from the undersurface 401 to frictionally capture the CD at its through hole, as described above. Also as described above, the spring fingers are affixed to the surface of the body, albeit in this embodiment to the undersurface 401, by way of a cantilever portion and are arranged in a circle having a center coincident with the center orrotation 407 of the implement. Although this embodiment offers increased physical protection to the CD, its presence is not as readily observed and any advertisement or promotional material that is present on a surface of the CD is not as prominent. In order to compensate for this hiddenness, the body of the implement can be formed of a transparent plastic, either in whole or just in an area near the crown of the body. - Another embodiment of the present invention is illustrated in the cross section of FIG. 8. A
depression 307 is formed in thetop surface 305 of thebody 301, having an essentially flatbottom surface 405 and a shape and depth to accommodate the expectedCD 101. Apedestal 801 is disposed on thebottom surface 405 and arranged symmetrically about the axis ofrotation 407. For those instances where the pedestal is circular, the diameter of the pedestal is approximately 30 mm to contact the CD within the clamping area, and the height of the pedestal is 1.2 mm to prevent the surface of the CD from generally contacting thebottom surface 405 of the body. A paper orplastic tape 803 is disposed over theCD 101 and thedepression 307 and extends for anoverlap distance 805 on theupper surface 305 of the body. In a preferred embodiment, this paper or plastic tape is selectively coated on its inner side with an adhesive in theoverlap distance 805 and in thecontact ring area 807 such that the CD is secured and protected within thedepression 307. Advertisement and promotional material can be printed or disposed on the outer side of the paper or plastic tape. - Thus, a CD is disposed with a Frisbee™-like implement for packaging and distribution of the CD. The gyroscopic stability of the implement is not unnecessarily compromised with the mountings described while the protection of the CD is maintained.
Claims (12)
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US09/915,978 US20030022586A1 (en) | 2001-07-25 | 2001-07-25 | Gyroscopically stabilized throwable implement |
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US09/915,978 US20030022586A1 (en) | 2001-07-25 | 2001-07-25 | Gyroscopically stabilized throwable implement |
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US20030022586A1 true US20030022586A1 (en) | 2003-01-30 |
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US20040077271A1 (en) * | 2003-07-31 | 2004-04-22 | Schaer David R. | Apparatus and method for converting a compact disc into a spinning toy top |
US20040107431A1 (en) * | 2002-12-03 | 2004-06-03 | Wilcoxson Cynthia H. | Flexible airfoil ring for safely flying CDs and DVDS |
US20050009437A1 (en) * | 2003-07-10 | 2005-01-13 | Hendron Scott Svend | Toy top spindle and assembly using compact discs |
US7055740B1 (en) | 2004-12-06 | 2006-06-06 | Target Brands, Inc. | Stored-value card adapted to be read by an electronic device |
US20060118618A1 (en) * | 2004-12-06 | 2006-06-08 | Target Brands, Inc. | Stored-value card adapted to be read by an electronic device |
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US20080078832A1 (en) * | 2006-10-03 | 2008-04-03 | Target Brands, Inc. | Finger puppet stored-value card |
US20090050693A1 (en) * | 2007-08-23 | 2009-02-26 | Target Brands, Inc. | Transaction card with sound and transformative playback feature |
US20090081916A1 (en) * | 2005-09-19 | 2009-03-26 | Rokbird International, Llc | Flying merchandise |
US20090108078A1 (en) * | 2007-10-31 | 2009-04-30 | Target Brands, Inc. | Transaction product with electrical circuit |
US20090112748A1 (en) * | 2007-10-31 | 2009-04-30 | Target Brands, Inc. | Transaction product with electrical circuit |
US7841538B2 (en) | 2007-10-31 | 2010-11-30 | Target Brands, Inc. | Transaction product with memory |
US20190255625A1 (en) * | 2017-02-17 | 2019-08-22 | Alain Gary Mazer | Hole saw guide |
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US20090081916A1 (en) * | 2005-09-19 | 2009-03-26 | Rokbird International, Llc | Flying merchandise |
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